CRUSHING OF FLEXIBLE PIPES UNDER TRACTION: A THEORETICAL-EXPERIMENTAL ASSESSMENT

被引:0
|
作者
Franzini, Guilherme R. [1 ]
Pesce, Celso P. [1 ]
Takafuji, Fernanda C. M. [1 ]
Goncalves, Rodolfo T. [2 ]
Tanaka, Rafael [3 ]
Silva, Marcelo [3 ]
Barbosa, Teofilo [3 ]
Godinho, Carlos A. [3 ]
机构
[1] Univ Sao Paulo, Escola Politecn, LIFE&MO Fluid Struct Interact & Offshore Mech Lab, Sao Paulo, Brazil
[2] Univ Sao Paulo, Escola Politecn, TPN Numer Offshore Mech Lab, Sao Paulo, Brazil
[3] Prysmian Cables & Syst, Vila Velha, Brazil
关键词
Flexible pipe; crushing tests; analytical model; experimental results;
D O I
暂无
中图分类号
P75 [海洋工程];
学科分类号
0814 ; 081505 ; 0824 ; 082401 ;
摘要
The paper presents a theoretical-experimental comparison concerning standard crushing-traction tests of flexible pipe prototypes. The theoretical model for crushing is analytical and based on classic assumptions of equivalent pipes, applying model previously published in OMAE2003, and OMAE2010. Such a model considers the combined action of squeezing, concentrated loads due to the caterpillar shoes as well as the effect of initial ovalization. The experimental measures include a detailed internal geometrical mapping of the deformed carcass, until plastic deformation becomes evident. Discussion is made on the pertinence of modeling hypotheses. Sensitivity analyses, regarding initial ovalization and helical pitch of the pressure armor are also addressed.
引用
收藏
页码:503 / +
页数:3
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